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Fri, 18 Mar 2005

nordic nRF9E5 stuff
the nRF9E5 is

a 433/868/915Mhz
GFSK radio transceiver
max. 10dBm transmit power
max 53kpbs (manchester encoded)
integrated 8051 derivate
similar parts: nRF24E1, nRF24E2, without 8051: nRF905, nRF2401, nRF2402

datasheet(v1.2) from nordic semiconductor

I have created some notes on the device (hoping to keep it up to date while I work on it).
I am coding in assembler, tools: asx8051 and aslink of the SDCC (small device c compiler)

my nRF9E5 include file

The EEPROM needs a 3 byte header, so for my toolchain, I needed to hack ihx2nRF9E5.pl

an excerpt from the source:


# ihx2nRF9E5.pl (c) by maZZoo [a] maZZoo.de
#                   licensed under GPLv2
# 
# mangles EEPROM data for an 8051-based nordic semicondictor
# nRF9E5 radio transceiver.
# 
# reads an Intel-hex-formatted file from stdin,
# writes it to stdout, all output addresses
# will be increased by $offset (>=3)
# 
# prepends bytes as the nRF9E5 requires.
# 
# probably does quite the same job as nordic's
# eeprep.exe - I never happened to run it.
#
# usage:
#       cat aslinkout.ihx | ./ihx2nRF9E5.pl > myeeprom.hex

After hacking the quick-n-dirty perl-script, I found srecord which seems to be able to do the same job; it can handle a wide variety of program formats and operations.

For programming the boot-EEPROM 25C320 I use ponyprog.

2 writebacks

writebacks...

Nestor wrote

Nordic has released v1.3 datasheet. I am coding in C with Keil Compiler

mazzoo wrote

thanks for the hint, I updated the link.

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